5605589666 has 8 divisors (see below), whose sum is σ = 8408704080. Its totient is φ = 2802688308.

The previous prime is 5605589653. The next prime is 5605589669. The reversal of 5605589666 is 6669855065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5605589669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65285 + ... + 124391.

It is an arithmetic number, because the mean of its divisors is an integer number (1051088010).

Almost surely, 2^5605589666 is an apocalyptic number.

5605589666 is a deficient number, since it is larger than the sum of its proper divisors (2803114414).

5605589666 is a wasteful number, since it uses less digits than its factorization.

5605589666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106528.

The product of its (nonzero) digits is 11664000, while the sum is 56.

The square root of 5605589666 is about 74870.4859474012. The cubic root of 5605589666 is about 1776.3986506775.

The spelling of 5605589666 in words is "five billion, six hundred five million, five hundred eighty-nine thousand, six hundred sixty-six".